When writing automation, it often happens that elements can’t be located. The following situations and solutions are summarized:
· Form nesting
· A new window opens
· Positioning method is not unique, or there is no such element
· Xpath positioning is incorrect
1. Form nesting
· Find the cause by looking up the location element to see if there is a
· Solution using switch_to_frame(“name value “)
driver = webdriver.Chrome()
Driver. Switch_to_frame (” name value “)
If the iframe does not have a name value, locate the iframe and transfer the locating object to switch_to_frame
Frame =driver.find_element_by_xpath(‘ Where to locate ‘)
driver.switch_to_frame(frame)
Once done, you can jump out of the current IFrame with the switch_to.parent_content() method
2. A new window is opened
· If the element to be searched is in a new window, you need to switch to the new window to locate it.
· Switch to the new window method
Get a handle to the newly opened window
handle = self.driver.current_window_handle
Get all window handles
handles = self.driver.window_handles
# Switch to a new window
for newhandles in handles:
if newhandles ! = handle:
self.driver.switch_to_window(newhandles)
3. The positioning method is not unique, or there is no such element
· Check to see if the element is locatable using the document.querySelector() method of F12’s console tag to verify that the element can be found
· There are multiple elements and you need to locate the specific element. < class=”picture” > < class=”picture”
driver.find_elements_by_class_name(‘picture’)[0]
4. The xpath location mode is incorrect
To check for xpath errors, open Chrome, press F12, CTRL + F, type the xpath you want to check, and see if you can locate the correct element.
